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SCORE CARD TIME MANAGEMENT QUESTIONS REPORT SOLUTION

Solution Report For Full Syllabus Test2Represent whole test solution with correct and incorrect answers.

View Your Test Analysis

Q. No Question Status

Q.1

Attempt Incorrect Your Ans. b Correct Ans. cSolutionHave any doubt?FAQ?Video Solution

Choose the most appropriate pair of options given below to complete the

following sentence.

Tourism has remained a ________ area even when there is a vast scope for

its _________ .

a. wide, agreement

b. small, formation

c. neglected, developmentd. rejected, approval

Q.2

Not Attempt Correct Ans. dSolutionHave any doubt?FAQ?Video Solution

Tom always thought that he might die in harness. What did Tom think?

a. to die happilyb. to die for a noble causec. to die with no safety

d. to die while working

Q.3

Not Attempt Correct Ans. aSolutionHave any doubt?FAQ?Video Solution

Which of the following options/words is the most inappropriate as a

replacement to the word which is bold in the sentence?

The judge ruled out that the egregious contract was null and void.

a. moderateb. appallingc. flagrantd. ghastly

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Q.4

Attempt Correct Correct Ans. aSolutionHave any doubt?FAQ?Video Solution

One fair coin is tossed four times, the probability that two heads and two tails

will appear is

a.

b.

c.

d.

Q.5

Attempt Incorrect Your Ans. 365 Correct Ans. 345SolutionHave any doubt?FAQ?Video Solution

If FGH : 876 : : EDC : _______

Q.6

Not Attempt Correct Ans. cSolutionHave any doubt?FAQ?Video Solution

It is strange that in Sentacity there are so many corner shops selling food

items. After all, there are many super markets in the city which sell food items

at a cheaper price. Many of these super markets are open 24 hrs. Which of the

following, if true, would be of least help in explaining the paradoxical

observation?

a. The super markets are mostly located at the out skirts of the city and requireresidents to use cars or public transport to reach them.

b. Corner shops are selling the local traditional food items.

c. The main business of the local shops is newspaper distribution and fooditems represent a small part of their turnover.

d. The corner shops are mainly family owned businesses and have been therefor much longer than the supermarkets and are perceived as an importantfeature of the community.

Q.7

Not Attempt Correct Ans. dSolutionHave any doubt?FAQ?Video Solution

If first nine multiples of five are multiplied together, then the number of zeros at

the end of the product are

a. 4b. 10c. 9

d. 7

Q.8 If N = 1! + 3! + 5! + 7! ...................... 99! then remainder obtained when N is

divided by 24 is


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a. 7b. 6c. 3d. 5

Q.9


The question below consists of a pair of related words followed by four pairs of

words. Select the pair that expresses the best relation in the original pair.

MEEK : TRACTABLE

a. Obstinate : Rigidb. Mellifluous : Harshc. Shrewd : Naived. Doleful : Alone

Q.10

Not Attempt Correct Ans. 4SolutionHave any doubt?FAQ?Video Solution

A man can row 50 km upstream and 72 km downstream in 9 hours. He can

also row 70 km upstream and 90 km downstream in 12 hours. The rate of

current is ________ km/hr.

Q.11

Attempt Correct Correct Ans. cSolutionHave any doubt?FAQ?Video Solution

If the reactive power ‘Q’ is 2000 VAR and power factor (pf) is 0.866 (leading),

then the complex power ‘S’ will be

a.

b.

c.

d.

Q.12 The Thevenin equivalent impedance across the terminals a and b of the

network shown below is


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Attempt Incorrect Your Ans. b Correct Ans. aSolutionHave any doubt?FAQ?Video Solution

a.

b.

c.

d.

Q.13

Attempt Correct Correct Ans. dSolutionHave any doubt?FAQ?Video Solution

For the circuit shown below, cutin voltage of diodes is Vr = 0.7 V. The values of

voltage V0 and current I0 are respectively.

a. 2 V, 2 mAb. 1 V, 1 mAc. 0.3 V, 0.3 mA

d. 2.3 V, 2.3 mA

Q.14 The feedback topology in the amplifier shown below is

a. voltage shunt feedbackb. current series feedback


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c. current shunt feedbackd. voltage series feedback

Q.15

Attempt Correct Correct Ans. bSolutionHave any doubt?FAQ?Video Solution

The output Z of the 4 × 1 multiplexer shown below is

a.

b.

c.

d.

Q.16


Which of the following is not a vectored interrupt in 8085 microprocessor

a. TRAP

b. INTRc. RST 6.5d. RST 7.5

Q.17


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Attempt Incorrect Your Ans. c Correct Ans. aSolutionHave any doubt?FAQ?Video Solution

a.

b.

c.

d.

Q.18

Attempt Correct Correct Ans. d

A discrete time Fourier transform pair is given by

a.

b.

c.

d.


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SolutionHave any doubt?FAQ?Video Solution

Q.19


A dc voltage of 6 V is applied across a 2 cm long semiconductor bar. The

average drift velocity of electrons is 104 cm/second. The electron mobility is

a. 4396 cm2/Vs

b. 3 × 104 cm2/Vs

c. 6 × 104 cm2/Vs

d. 3333 cm2/Vs

Q.20


Three different second order control systems have same settling time for step

input. Their poles will lie on

a. A circleb. An ellipsec. A straight line passing through imaginary axis

d. A straight line parallel to imaginary axis

Q.21


A 25 channel PCM system samples voice at a rate of 10 kHz. The minimum

channel bandwidth required is 2 MHz. If the samples are encoded with K

bits/sample, then the value of K is

a. 8

b. 16c. 24d. None

Q.22


If at (1, 1, 1) will be

a. 0b. 1c. 2d. 4

Q.23 The following system of homogenous equations have

2x + y + 2z = 0

x + y + 3z = 0

4x + 3y + z = 0

a. no solution

b. unique solution


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c. two solutionsd. infinitely many solutions

Q.24

Attempt Correct Correct Ans. 4SolutionHave any doubt?FAQ?Video Solution

Consider the figure shown below.

The maximum value of Vc(t) is ________ (Volts)

Q.25

Attempt Incorrect Your Ans. 0 Correct Ans. 24SolutionHave any doubt?FAQ?

For the circuit shown below, the value of the current I0 is _________ mA.

Q.26

Attempt Correct Correct Ans. 8.944 (8.80 9.20)SolutionHave any doubt?FAQ?Video Solution

The radiation resistance of a Hertzian dipole is given as (π2) ohms, the

value of K is _______

Q.27


To add two 8bit numbers, the minimum number of half adders required is

_________ .

Q.28 A discrete memory less source delivers symbols X1, X2, X3 and X4 with

probabilities respectively. The entropy of the source is


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_________ (bits/symbol)

Q.29


If the magnitude of the polar plot at phase crossover frequency is 10, then the

gain margin of the system is ______ (dB).

Q.30

Attempt Incorrect Your Ans. 12.36 Correct Ans. 9.2 (9.15 9.25)SolutionHave any doubt?FAQ?Video Solution

Consider the power spectral density of a random process X(t) given by,

SX(ω) = 8πδ(ω) + 1.2 π δ (ω – 2.3 π) + 1.2π δ(ω + 2.3π) + 4πδ (ω – 5) + 4πδ (ω

+ 5) W/rad/sec

The average power of the process is equal to ________ (W).

Q.31


The primary parameters of a lossless transmission line are given as L = 8

μH/m and C = 200 pF/m. The characteristic impedance of the line is ________

Ω.

Q.32


An airfilled rectangular waveguide has dimensions a × b (a > b). If the cut off

frequency is 4 GHz, then the value of ‘a’ is __________ cm.

Q.33


The electric field of a uniform plane wave propagating in a lossless

nonmagnetic medium is given by

If the polarization state of the wave is circular, then the value of θ is ________

(radians)

Q.34

Attempt Correct Correct Ans. 0.2 (0.18 0.22)

If X is a random variable which is uniformly distributed in the interval [0, 1],

then the value of E[X4] will be __________ . (where E[⋅] indicates expectation

operator)


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Q.35


The particular integral solution of the differential equation = 10sinx

is Asinx. The value of ‘A’ is _________ .

Q.36

Attempt Incorrect Your Ans. c Correct Ans. bSolutionHave any doubt?FAQ?Video Solution

A two port network is represented by ABCD parameters as

If port2 of the network is terminated by RL = 2 Ω, then the input impedance

seen at port1 is

a. 1.5 Ω

b. 1.75 Ω

c. 2 Ωd. None of these

Q.37

Attempt Incorrect Your Ans. d Correct Ans. bSolutionHave any doubt?FAQ?Video Solution

In the circuit shown below vC(t) = 0 volts at t = 0 sec. For t > 0, the current

through the capacitor is given as The value

of "R" is

a. 3 kΩ

b. 6 kΩc. 9 kΩ

d. None of these

Q.38 The continuous time signal x(t) = e–at u(t) is sampled at a rate fs = 1/Ts. The Z

transform of x[n], where x[n] = x(nTs) is given by

a.

b.


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c.

d.

Q.39


If the Fourier of continuous time signal x(t) is X(ω), then x(–t –2) has the

Fourier transform of

a.

b.

c.

d.

Q.40

Not Attempt Correct Ans. bSolutionHave any doubt?FAQ?Video Solution

For a (7, 4) linear block code, the parity check matrix is given by

the syndrome calculated using the received code word is

Which of the following error patterns is corresponding to the given syndrome.

a.

b.

c.

d.

Q.41

Not Attempt Correct Ans. b

In a GSMSystem, 8 channels can coexist in 200 kHz bandwidth using TDMA. A

GSM based cellular operator is allocated 5 MHz bandwidth. Assuming a

frequency reuse factor of i.e. a 5cell repeat pattern. The maximum

number of simultaneous channels that can coexist in one cell is

a. 20

b. 40c. 60d. 80


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Q.42


Consider an AWGN channel with a 4 kHz bandwidth and the noise power

spectral density The signal power required at the

receiver is 0.1 mW. The capacity of this channel is

a. 4 kbpsb. 26.33 kbps

c. 54.44 kbpsd. 100 kbps

Q.43


The opamp circuit shown below represents

a. a low pass filterb. a high pass filterc. an all pass filterd. a band pass filter

Q.44The value of current gain in the circuit shown below is ________.

a. 400

b. 441c. 1


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d. None

Q.45


Which of the following relations is correct for the BJT shown below?

a.

b.

c.

d.

Q.46


The loop transfer function of a negative feedback control system is given by

The range of ‘K’ for which the closed loop system is stable

a.

b.

c.

d.

Q.47 A second order system has a settling time (Ts) (for ± 2% tolerance) of 4 sec

and a peak time (Tp) of 3.14 sec. Which of the following is correct

representation of poles of the system


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a.

b.

c.

d.

Q.48


Consider the sequential circuit shown below

If flip flops are initially reset (QB QA = 00)

the sequence of the states (QB QA) for further clock pulses is

a. 00 → 01 → 10 → 11 → 00b. 00 → 10 → 01 → 11 → 01c. 00 → 11 → 10 → 01 → 00

d. 00 → 01 → 11 → 10 → 01


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Q.49


The output ‘F’ of the digital logic circuit shown in the figure is

a. F = AND (A, B)b. F = XOR (A, B)

c. F = XNOR (A, B)d. F = OR (A, B)

Q.50

Not Attempt Correct Ans. bSolutionHave any doubt?FAQ?Video Solution

For a 3 level Quantizer, the decision boundaries are set at ±a, ±b. A band

limited message signal whose probability density function is shown below is

applied to the Quantizer. If the entropy at the Quantizer output is maximum,

then the values of “a” and “b” are respectively _______.

a. 2 and 3

b. 2 and 4c. 4 and 2d. 3 and 2

Q.51


Let there be a function f(x) =| x | . The derivative of f(x) with respect to x at x = 0

is

a. 1b. 0c. 1

d. does not exist

Q.52The value of integral is

(where C is a circle defined as |z| = 2)

a. 0


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b. 2π (3i + 2)c. 2π(3j – 2)d. 2π (–3j –2)

Q.53

Attempt Incorrect Your Ans. 8.33 Correct Ans. 1SolutionHave any doubt?FAQ?Video Solution

The inputoutput relationship of a causal stable LTI system is given by

y(n) = 4 y (n –1) + 5 y (n – 2) + 8x (n). If the impulse response of this system is

h(n), then the value of will be _________ .

Q.54


In the circuit shown below, switch ‘S ’ is connected to node A for a long time

and moved to node B at t = 0. The value of Vc(t) at t = 2 m sec is ________

Volts.

Q.55

Not Attempt Correct Ans. 9.97 (9.90 10.10)SolutionHave any doubt?FAQ?Video Solution

Consider a WSS (wide sense stationary) process with auto correlation

function A new random variable Z is created by sampling

this process at t = 5 and t = 8 sec. Let those sampled random variables as W

and Y respectively. If Z = W – Y, then the value of E[Z2] is ________ .

(where E[⋅] indicates expectation operator)

Q.56


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Attempt Incorrect Your Ans. 40 Correct Ans. –8.33 (–9.00 –8.00)SolutionHave any doubt?FAQ?

Consider the CE amplifier circuit shown in the figure.

If the hie of the BJT is 1.9 kΩ, then the midband voltage gain will be

______.

Q.57

Not Attempt Correct Ans. 20.83 (20.00 21.00)SolutionHave any doubt?FAQ?Video Solution

A circularly polarized wave has the electric field component given by,

If the wave travels in free space, then the power crossing a square sheet

(placed at z = constant plane) with an area 25π az m2 will be _____ (Watts)

Q.58

Not Attempt Correct Ans. –1130.9 (–1135.00 –1125.00)SolutionHave any doubt?FAQ?Video Solution

Two infinite sheet charges at 10 nC/m2, –10 nC/m2 are placed at y = 2 m and y

= –5 m respectively. The electric field at (x = 2 m, y = 1 m , z= 0) is

___________ ay N/C.

Q.59

Not Attempt Correct Ans. 45SolutionHave any doubt?FAQ?Video Solution

The radiation intensity of a certain antenna is

If the directivity of the antenna is then the minimum value of Φ0 is

_______ (degrees)

Q.60


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Attempt Incorrect Your Ans. 0.759 Correct Ans.0.076 (0.065 0.085)


For the circuit shown, the value of reverse saturation current Is of the identical

diodes, so that Vout = 2.4 Volt is ________ fA (femtoampere)

(assume VT = 25 mV, η = 1)

Q.61

Attempt Incorrect Your Ans. 2.59 Correct Ans. 2.6 (2.20 3.00)SolutionHave any doubt?FAQ?Video Solution

If electron mobility is three times that of hole mobility (i.e. μn = 3 μp) and all

acceptor atoms are ionized, then the acceptor concentration (Na) required for

a sample of silicon to show minimum conductivity at room temperature is

__________ × 1010 cm–3. (Assume ni = 1.5 × 1010 cm–3 at room temperature)

Q.62

Attempt Correct Correct Ans. 1 (0.90 1.10)SolutionHave any doubt?FAQ?Video Solution

A semiconductor doped with and has a resistance R1. The

same semiconductor is doped with yielding a resistance of

The ratio

(Dp and Dn are hole and electron diffusion constants respectively).

Q.63

Attempt Incorrect Your Ans. 32 Correct Ans. 26SolutionHave any doubt?FAQ?Video Solution

Consider x(n) and y(n) be two three point sequence

x(n) = (1, 2, 1), y(n) = (–1, 2, 1)

The circular convolution of x(n) and y(n) is z(n). The energy of z(n) is

___________.

Q.64The value of where ‘C’ is the closed curve of

the region bounded by y = x2 and y2 = x, is __________


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Not Attempt Correct Ans. –0.6 (–0.65 – 0.55)SolutionHave any doubt?FAQ?Video Solution

Q.65

Attempt Correct Correct Ans. –2.25 (–2.50 –2.00)SolutionHave any doubt?FAQ?Video Solution

Consider the function f(x) = x2 – x – 2. The minimum value of f(x) in closed

interval [–4, 4] is ________ .


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